I missed hand one, so I can't provide much opinion on that. But I believe you did correct on the other two hands. At the point you went out, average stack was a tad under $30k. You're way too low, and I think pushing with AT was probably the best you could have managed to get at that point. Just so happens another guy had you dominated.
All in all, you did put in a great showing. It's going to come down to luck now and then, and it just happened that a guy hit his two outer on you that second hand.
Hopefully, someone will actually hire me soon so I can start building a good bankroll to really get playing myself rather than the sporadic runs of poker I have now where I have to play for a bit, win a good amount - pay the rent with it and wait a while to get around to doing it again.

Maybe, I'll join you for one in a couple of months!
P.S. Don't go looking at cards for a day or two.